Optimization of difficult endodontic treatment with nickel-titanium files in martensitic and austenitic phase
https://doi.org/10.36377/ET-0004
Abstract
INTRODUCTION. Nickel-titanium alloys and cutting-edge design of endodontic files continue to revolutionize. In addition to variations in the design of nickel-titanium files, manufacturers have implemented several proprietary manufacturing processing procedures to improve their mechanical properties.
AIM. The aim of the study was to improve the quality of mechanical instrumentation of highly curved root canals based on the data of laboratory and experimental analysis of rotary endodontic instruments made of nickel-titanium alloys of various modifications.
MATERIAL AND METHODS. As part of the research, the following endodontic rotary files systems were studied during instrumentation of curved root canals: group 1 – Mtwo (VDW); group 2 – Race Evo (FKG), group 3 – Ultrataper next (Eurofile). A metallographic analysis of the instruments was performed, a morphological structure of the root dentin after instrumental was examined by scanning electron microscopy, as well as the amount of extruded debris was studied.
RESULTS. Groups 2 and 3 showed significant deterioration after three applications. Mtwo files showed a statistically higher amount of surface damage after five uses (p < 0.05). The smallest amount of extruded debris was found in the group 2, while the largest number of root dentin irregulations was found in the groups 1 and 3 (p < 0.001).
CONCLUSIONS. A different degree of the surface damage of the instruments was revealed, depending on the number of treated root canals. The safest and most effective endodontic system for the mechanical preparation of curved root canals is the Race EVO.
About the Authors
D. A. Ostanina
Russian University of Medicine
Russian Federation
Competing Interests:
Russian Federation
Diana A. Ostanina – Cand. Sci. (Med.), Associate Professor of the Department of Cariology and Endodontics
4 Dolgorukovskaya St., Moscow 127006
Competing Interests:
Alexander V. Mitronin is the members of the editorial board, however, it was excluded in the double-blind peer review process.
Yu. A. Mitronin
Russian University of Medicine
Russian Federation
Competing Interests:
Russian Federation
Yuriy A. Mitronin – Postgraduate Student, Assistant of the Department of Cariology and Endodontics
4 Dolgorukovskaya St., Moscow 127006
Competing Interests:
Alexander V. Mitronin is the members of the editorial board, however, it was excluded in the double-blind peer review process.
D. V. Anisimova
Russian University of Medicine
Russian Federation
Competing Interests:
Russian Federation
Daria V. Anisimova – Laboratory Assistant, Student
4 Dolgorukovskaya St., Moscow 127006
Competing Interests:
Alexander V. Mitronin is the members of the editorial board, however, it was excluded in the double-blind peer review process.
A. V. Mitronin
Russian University of Medicine
Russian Federation
Competing Interests:
Russian Federation
Alexander V. Mitronin – Dr. Sci. (Med.), Professor, Dean of the Faculty of Dentistry, Head of the Department of Cariology and Endodontics, Honored Doctor of Russian Federation
4 Dolgorukovskaya St., Moscow 127006
Competing Interests:
Alexander V. Mitronin is the members of the editorial board, however, it was excluded in the double-blind peer review process.
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Review
For citations:
Ostanina D.A., Mitronin Yu.A., Anisimova D.V., Mitronin A.V. Optimization of difficult endodontic treatment with nickel-titanium files in martensitic and austenitic phase. Endodontics Today. 2024;22(1):4-10. (In Russ.) https://doi.org/10.36377/ET-0004
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